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Determination Of The Chemical Spread Function Of Kodak High Contrast Copy 5069 Emulsion, J.N.A. Laitre
Determination Of The Chemical Spread Function Of Kodak High Contrast Copy 5069 Emulsion, J.N.A. Laitre
Theses
A new procedure for obtaining the Chemical Spread Function of an emulsion-developer combination is discussed. This procedure consists of directly measuring the Optical Modulation Transfer Function (MTFO) by scanning the sinusoidal object irradiance distribution through the non-developed emulsion using a microdensitometer. The Modulation Transfer Function (MTF) of the processed emulsion is determined in the conventional manner. Then the Chemical Modulation Transfer Function (MTFC) is determined from the linear relationship: MTF = MTFC X MTFO. Once the MTFO is determined then the Spread Function is calculated using the Fourier Transform operator. Photographic systems are in general non-linear. However it is well …
Mtf Analysis Of An Emulsion Used For Color Paper, C. Alan Way
Mtf Analysis Of An Emulsion Used For Color Paper, C. Alan Way
Theses
This thesis studied the relationship between the MTF's of a color emulsion used for photographic paper but coated on clear base. Analysis of the MTF curves show differences that can be attributed to interimage effects. The effects in the red and blue sensitive layers caused a decrease in the overall MTF of the film.
Determining The Modulation Transfer Function Of A Lens-Film Combination Using The Diffraction Effects Of A Coherent Imaging System, Mark Washburn
Determining The Modulation Transfer Function Of A Lens-Film Combination Using The Diffraction Effects Of A Coherent Imaging System, Mark Washburn
Theses
This study will present a simple, quick, and inexpensive way to producing sinusoidal test targets, which can then be used in measuring the image quality of a photographic system by way of a coherent system. The sinusoidal test targets will be produced from a series of bar targets using Fourier Optics, and a comparison study will be made between measuring MTF with a laser and a microdensitometer. A defocused target series will also be produced to note the change in MTF of the photographic system. The results indicate that sinusoidal test targets can be made quickly and inexpensively, and then …